"íss" meaning in Old Irish

{
  "forms": [
    {
      "form": "·íss",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "·íss",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "pronounced with /h/ in h-prothesis environments",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "·n-íss",
      "source": "mutation"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "verb form",
        "head": "·íss"
      },
      "expansion": "·íss",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "93 3 3",
          "kind": "other",
          "name": "Old Norse entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "95 2 2",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "96 2 2",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "form_of": [
        {
          "word": "ithid"
        }
      ],
      "glosses": [
        "first-person singular future conjunct of ithid"
      ],
      "id": "en-íss-sga-verb-Db7vHyv7",
      "links": [
        [
          "ithid",
          "ithid#Old_Irish"
        ]
      ],
      "tags": [
        "conjunct",
        "first-person",
        "form-of",
        "future",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/iːs/"
    }
  ],
  "word": "íss"
}

{
  "categories": [
    "Old Norse entries with incorrect language header",
    "Old Norse lemmas",
    "Old Norse masculine a-stem nouns",
    "Old Norse masculine nouns",
    "Old Norse nouns",
    "Old Norse terms derived from Proto-Germanic",
    "Old Norse terms derived from Proto-Indo-European",
    "Old Norse terms inherited from Proto-Germanic",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "·íss",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "·íss",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "pronounced with /h/ in h-prothesis environments",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "·n-íss",
      "source": "mutation"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "verb form",
        "head": "·íss"
      },
      "expansion": "·íss",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Old Irish entries with incorrect language header",
        "Old Irish non-lemma forms",
        "Old Irish verb forms",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "ithid"
        }
      ],
      "glosses": [
        "first-person singular future conjunct of ithid"
      ],
      "links": [
        [
          "ithid",
          "ithid#Old_Irish"
        ]
      ],
      "tags": [
        "conjunct",
        "first-person",
        "form-of",
        "future",
        "singular"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/iːs/"
    }
  ],
  "word": "íss"
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: íss/Old Irish 'radical' base_tags=set()",
  "path": [
    "íss"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "íss",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'lenition'",
  "path": [
    "íss"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "íss",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'nasalization'",
  "path": [
    "íss"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "íss",
  "trace": ""
}

{
  "called_from": "inflection/1826",
  "msg": "inflection table: empty tags for ·n-íss",
  "path": [
    "íss"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "íss",
  "trace": ""
}